blob: 2c37906690491c39a5830c1228b7b6188133e0ba [file] [log] [blame]
ramonsalguer8ac0f082020-06-03 20:13:34 +02001#!/bin/sh -eux
2
3# Licensed under the Apache License, Version 2.0 (the "License");
4# you may not use this file except in compliance with the License.
5# You may obtain a copy of the License at
6#
7# http://www.apache.org/licenses/LICENSE-2.0
8#
9# Unless required by applicable law or agreed to in writing, software
10# distributed under the License is distributed on an "AS IS" BASIS,
11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12# See the License for the specific language governing permissions and
13# limitations under the License.
14
15SSHD_CONFIG="/etc/ssh/sshd_config"
16
17# ensure that there is a trailing newline before attempting to concatenate
18sed -i -e '$a\' "$SSHD_CONFIG"
19
20USEDNS="UseDNS no"
21if grep -q -E "^[[:space:]]*UseDNS" "$SSHD_CONFIG"; then
22 sed -i "s/^\s*UseDNS.*/${USEDNS}/" "$SSHD_CONFIG"
23else
24 echo "$USEDNS" >>"$SSHD_CONFIG"
25fi
26
27GSSAPI="GSSAPIAuthentication no"
28if grep -q -E "^[[:space:]]*GSSAPIAuthentication" "$SSHD_CONFIG"; then
29 sed -i "s/^\s*GSSAPIAuthentication.*/${GSSAPI}/" "$SSHD_CONFIG"
30else
31 echo "$GSSAPI" >>"$SSHD_CONFIG"
32fi